DUMMY (2)

Dum″my, n.; pl. Dummies (�). 1. 1. One who is dumb. H. Smith.
2. 2. A sham package in a shop, or one which does not contain what its exterior indicates.
3. 3. An imitation or copy of something, to be used as a substitute; a model; a lay figure; as, a figure on which clothing is exhibited in shop windows; a blank paper copy used to show the size of the future book, etc.
4. 4. (Drama) One who plays a merely nominal part in any action; a sham character.
5. 5. A thick-witted person; a dolt.
6. 6. (Railroad) A locomotive with condensing engines, and, hence, without the noise of escaping steam; also, a dummy car.
7. 7. (Card Playing) The fourth or exposed hand when three persons play at a four-handed game of cards.
8. 8. A floating barge connected with a pier. Knight.
To play dummy, to play the exposed or dummy hand in cards. The partner of the dummy plays it.